CN110591566A - Graphene oxide modified aluminum phosphate adhesive for artificial board and preparation method thereof - Google Patents
Graphene oxide modified aluminum phosphate adhesive for artificial board and preparation method thereof Download PDFInfo
- Publication number
- CN110591566A CN110591566A CN201910962314.2A CN201910962314A CN110591566A CN 110591566 A CN110591566 A CN 110591566A CN 201910962314 A CN201910962314 A CN 201910962314A CN 110591566 A CN110591566 A CN 110591566A
- Authority
- CN
- China
- Prior art keywords
- graphene oxide
- oxide modified
- aluminum phosphate
- adhesive
- modified aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/0209—Methods, e.g. characterised by the composition of the agent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J1/00—Adhesives based on inorganic constituents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an alumina graphene modified aluminum phosphate adhesive for an artificial board and a preparation method thereof, wherein the PVA-aluminum phosphate adhesive is modified by adopting the alumina graphene to obtain an aldehyde-free environment-friendly adhesive for the artificial board with the viscosity of 150-600 mPa & S and the solid content of 40-80%, and the adhesive has the characteristics of good strength, high temperature resistance, flame retardance, mildew resistance and the like. The invention has the advantages of wide raw material source, low price, simple and easy operation, no toxic and harmful substances generated in the production process, good mechanical property, flame-retardant and mildew-proof performance and the like, and is expected to become a novel environment-friendly artificial board adhesive.
Description
Technical Field
The invention belongs to the technical field of materials, and particularly relates to a method for preparing a phosphorus-aluminum inorganic adhesive for a graphene oxide modified artificial board.
Background
Graphene Oxide (GO) is a Graphene monolith formed by exfoliation of Graphite Oxide (Graphite Oxide). Graphite oxide is a graphite derivative prepared by oxidizing crystalline flake graphite with a strong oxidizing agent. After oxidation treatment, hydroxyl groups and epoxy groups are randomly distributed on the graphene oxide single sheet, and carboxyl groups and carbonyl groups are introduced at the edge of the single sheet. During the oxidation treatment process although SP2The hybridized carbon atom network structure is destroyed, but GO still maintains excellent mechanical properties. Due to the fact that a large number of oxygen-based active functional groups are introduced into graphene, the surface of the graphene which is originally inert becomes extremely active, and chemical reactions based on the active functional groups are abundant and diverse.
Polyvinyl alcohol (PVA) is a hydrophilic organic high molecular polymer having a large number of hydroxyl groups on its C — C chain. A large number of hydroxyl groups on the PVA main chain can be connected with GO through hydrogen bonds and covalent bonds. Therefore, the GO/PVA composite material has excellent mechanical property, optical property, magnetism and shape memory property. The invention aims to modify a PVA-aluminum phosphate adhesive by using graphene oxide so as to improve the mechanical strength of the adhesive in a plywood.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the graphene oxide modified aluminum phosphate adhesive for the artificial board and the preparation method thereof, and the graphene oxide modified aluminum phosphate adhesive has good mechanical property, flame-retardant and mildew-proof properties and the like, and is expected to become a novel environment-friendly artificial board adhesive.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a preparation method of graphene oxide modified aluminum phosphate adhesive for artificial boards comprises the following steps:
(1) phosphoric acid or hydrogen phosphate and an aluminum compound are used as raw materials, and the solid content of the adhesive is designed according to a certain phosphorus-aluminum ratio;
(2) heating a certain amount of phosphoric acid or hydrogen phosphate salt bath, and adding a certain amount of PVA and a catalyst for reaction for a period of time;
(3) slowly adding a certain amount of aluminum compound into the mixture obtained in the step (2) according to the phosphorus-aluminum ratio for reaction for a period of time;
(4) and (3) adding graphene oxide into the mixture obtained in the step (3) according to a certain proportion, and performing ultrasonic treatment for a certain time to uniformly disperse the graphene oxide in the aluminum phosphate adhesive, so as to obtain the graphene oxide modified aluminum phosphate adhesive for the artificial board.
The hydrogen phosphate salt in the step (1) comprises dihydrogen phosphate and monohydrogen phosphate; the aluminum compound comprises aluminum hydroxide, aluminum oxide and aluminum nitride; the ratio of phosphorus to aluminum (molar ratio of phosphorus to aluminum) is 2.0:1-4.0: 1; the solid content of the adhesive is 40-85%.
The temperature for heating the water bath in the step (2) is 70-100 ℃; the addition amount of PVA is 0.1-5.0% of the total mass of the phosphorus-aluminum raw material; the used catalyst is urea, and the adding amount of the urea is 0.1-10% of the total mass of the phosphorus-aluminum raw material; the reaction time is 20-300 min.
The reaction time in the step (3) is 20-300 min.
In the step (4), the addition amount of the graphene oxide is 0.1-5.0% of the designed solid content; the ultrasonic power is 10-4000W, and the ultrasonic treatment time is 1-300 min.
The viscosity of the obtained graphene oxide modified aluminum phosphate adhesive is 150-600 mPa & S.
The method for preparing the artificial board by using the graphene oxide modified aluminum phosphate adhesive comprises the steps of uniformly mixing the graphene oxide modified aluminum phosphate adhesive with a curing agent, spraying the mixture on the surfaces of wood shavings and fibers according to a certain proportion or directly coating the mixture on the surface of a veneer, and then carrying out hot pressing on the glued wood shavings, fibers or veneer under certain conditions to form the artificial board.
Wherein the amount of the curing agent is 1-10% of the mass of the graphene oxide modified aluminum phosphate adhesive; the curing agent is magnesium oxide, aluminum oxide, copper oxide, zinc oxide, iron oxide or aluminum nitride.
The glue application amount of the wood shavings and the fibers is 8 to 30 percent of the absolute dry mass of the prepared artificial board; the single board is at 100-300g/m2And (4) performing double-sided sizing.
The hot pressing temperature of the wood shavings and the fibers is 150-200 ℃, the hot pressing time is 0.5-2min/mm, and the hot pressing pressure is 0.5-2.0 MPa;
the hot pressing temperature of the single board is 150-200 ℃, the hot pressing time is 0.5-2min/mm, and the hot pressing pressure is 0.5-2.0 MPa.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a formaldehyde-free aluminum phosphate adhesive for artificial boards, which has the advantages of rich raw material sources, low price, simple and pollution-free production process, no pollution of wastes to the environment and natural degradation.
(2) The artificial board prepared by the aluminum phosphate adhesive has good mechanical strength, and the related physical and chemical properties such as mildew resistance, corrosion resistance and the like are improved; particularly, the flame retardant property is obviously enhanced, the flame retardant grade reaches B2 grade specified in the building interior decoration design fire protection code, and the smoke quantity is small in the combustion process.
Detailed Description
In order to make the present invention more comprehensible, the technical solutions of the present invention are further described below with reference to specific embodiments, but the present invention is not limited thereto.
Example 1
Diluting 300g of phosphoric acid with water to 65%, pouring the phosphoric acid into a three-neck flask, heating the phosphoric acid to 90 ℃ in a water bath, adding 5g of PVA and 3g of catalyst urea to react for 120min, then adding 72g of aluminum hydroxide according to the phosphorus-aluminum ratio of 2.8, reacting for 30min, cooling and bottling the mixture to obtain an adhesive with the solid content of 65%; adding graphene oxide according to 0.6% of the solid content, and performing ultrasonic treatment at 500w for 30min to obtain the graphene oxide modified aluminum phosphate adhesive.
Uniformly mixing the prepared graphene oxide modified aluminum phosphate adhesive with curing agent ferric oxide accounting for 3% of the mass of the adhesive, and then applying the adhesive according to the double-side adhesive application amount of 200g/m2Coated on the surface of the veneer, and then the veneer is hot-pressed (hot-pressing temperature: 160 ℃, hot-pressing time: 2min/mm, hot-pressing pressure: 1.0 MPa) to prepare the plywood.
The viscosity, the oxygen index, the mechanical property and the mildew resistance of modified and unmodified adhesives and plywood samples prepared by the modified and unmodified adhesives are respectively measured by using a rotary rheometer and according to Chinese national standards (GB/T8924-2005, GB/T17657-2013 and GB/T18261-2013), and the results are as follows: the viscosity of the unmodified adhesive is 350 mPa.S, the oxygen index of a sample is 32.1%, the dry strength is 2.11 MPa, the wet strength is 0.66MPa, the elastic modulus is 3210 MPa, the static bending strength is 38 MPa, and the mold control efficiency is 75%; the viscosity of the modified adhesive prepared by the embodiment is 380 mPa & S, the oxygen index of a sample is 32.5%, the dry strength is 2.65 MPa, the wet strength is 1.58 MPa, the elastic modulus is 3200 MPa, the static bending strength is 45 MPa, and the mold control efficiency is 81%.
Example 2
Diluting 320g of phosphoric acid with water to 65%, pouring the phosphoric acid into a three-neck flask, heating the phosphoric acid to 92 ℃ in a water bath, adding 4g of PVA and 2g of catalyst urea to react for 125min, then adding 74g of aluminum hydroxide according to the phosphorus-aluminum ratio of 2.9, reacting for 35min, cooling and bottling the mixture to obtain an adhesive with the solid content of 67%; adding graphene oxide according to 0.8% of the solid content, and performing ultrasonic treatment at 500w for 35min to obtain the graphene oxide modified aluminum phosphate adhesive.
Uniformly mixing the prepared graphene oxide modified aluminum phosphate adhesive with curing agent ferric oxide accounting for 3.1% of the mass of the adhesive, and then applying the adhesive according to the double-side adhesive application amount of 210g/m2Coating on the surface of the veneer, and hot-pressing the veneer (hot-pressing temperature): 165 ℃, hot pressing time: 1.5min/mm, hot pressing pressure: 1.1 MPa) to prepare plywood.
The viscosity, the oxygen index, the mechanical property and the mildew resistance of the plywood prepared by using the modified and unmodified adhesive are respectively measured by using a rotary rheometer and according to the Chinese national standards (GB/T8924-2005, GB/T17657-2013 and GB/T18261-2013), and the results are as follows: the viscosity of the unmodified adhesive is 360 mPa.S, the oxygen index of a sample is 32.2%, the dry strength is 1.98 MPa, the wet strength is 0.61MPa, the elastic modulus is 3010 MPa, the static bending strength is 35 MPa, and the mold control efficiency is 72%; the viscosity of the modified adhesive prepared by the embodiment is 410 mPa & S, the oxygen index of a sample is 32.3%, the dry strength is 2.58MPa, the wet strength is 1.61MPa, the elastic modulus is 3300 MPa, the static bending strength is 43MPa, and the mold control efficiency is 84%.
Example 3
Diluting 350g of phosphoric acid with water to 63%, pouring the diluted phosphoric acid into a three-neck flask, heating the phosphoric acid to 95 ℃ in a water bath, adding 8g of PVA and 4g of catalyst urea to react for 115min, then adding 87g of aluminum hydroxide according to the phosphorus-aluminum ratio of 2.7, reacting for 40min, cooling and bottling the mixture to obtain an adhesive with the solid content of 62%; adding graphene oxide according to 0.7% of the solid content, and performing ultrasonic treatment at 500w for 38min to obtain the graphene oxide modified aluminum phosphate adhesive.
Uniformly mixing the prepared graphene oxide modified aluminum phosphate adhesive with curing agent ferric oxide accounting for 3.3% of the mass of the adhesive, and then applying the adhesive according to the double-side adhesive amount of 220g/m2Coated on the surface of the veneer, and then the veneer is hot-pressed (hot-pressing temperature: 168 ℃, hot-pressing time: 1.2min/mm, hot-pressing pressure: 1.2 MPa) to prepare the plywood.
The viscosity, the oxygen index, the mechanical property and the mildew resistance of the plywood prepared by using the modified and unmodified adhesive are respectively measured by using a rotary rheometer and according to the Chinese national standards (GB/T8924-2005, GB/T17657-2013 and GB/T18261-2013), and the results are as follows: the viscosity of the unmodified adhesive is 380 mPa & S, the oxygen index of a sample is 32.3%, the dry strength is 1.91 MPa, the wet strength is 0.58MPa, the elastic modulus is 3015 MPa, the static bending strength is 34 MPa, and the mold control efficiency is 72%; the viscosity of the modified adhesive prepared by the embodiment is 415 mPa.S, the oxygen index of a sample is 32.4%, the dry strength is 2.7MPa, the wet strength is 1.55 MPa, the elastic modulus is 3400 MPa, the static bending strength is 45 MPa, and the mold control efficiency is 84%.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (10)
1. The preparation method of the graphene oxide modified aluminum phosphate adhesive for the artificial board is characterized by comprising the following steps of: the method comprises the following steps:
(1) phosphoric acid or hydrogen phosphate and an aluminum compound are used as raw materials, and the solid content of the adhesive is designed according to a certain phosphorus-aluminum ratio;
(2) heating a certain amount of phosphoric acid or hydrogen phosphate salt bath, and adding a certain amount of PVA and a catalyst for reaction for a period of time;
(3) slowly adding a certain amount of aluminum compound into the mixture obtained in the step (2) according to the phosphorus-aluminum ratio for reaction for a period of time;
(4) and (3) adding graphene oxide into the mixture obtained in the step (3) according to a certain proportion, and carrying out ultrasonic treatment for a certain time to obtain the graphene oxide modified aluminum phosphate adhesive for the artificial board.
2. The preparation method of the graphene oxide modified aluminum phosphate adhesive for the artificial board according to claim 1, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: the hydrogen phosphate salt in the step (1) comprises dihydrogen phosphate and monohydrogen phosphate; the aluminum compound comprises aluminum hydroxide, aluminum oxide and aluminum nitride; the phosphorus-aluminum ratio is 2.0:1-4.0: 1;
the solid content of the adhesive is 40-85%.
3. The preparation method of the graphene oxide modified aluminum phosphate adhesive for the artificial board according to claim 1, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: the temperature for heating the water bath in the step (2) is 70-100 ℃; the addition amount of PVA is 0.1-5.0% of the total mass of the phosphorus-aluminum raw material; the used catalyst is urea, and the adding amount of the urea is 0.1-10% of the total mass of the phosphorus-aluminum raw material; the reaction time is 20-300 min.
4. The preparation method of the graphene oxide modified aluminum phosphate adhesive for the artificial board according to claim 1, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: the reaction time in the step (3) is 20-300 min.
5. The preparation method of the graphene oxide modified aluminum phosphate adhesive for the artificial board according to claim 1, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: in the step (4), the addition amount of the graphene oxide is 0.1-5.0% of the designed solid content; the ultrasonic power is 10-4000W, and the ultrasonic treatment time is 1-300 min.
6. The graphene oxide modified aluminum phosphate adhesive prepared by the method of claim 1, wherein: the viscosity of the graphene oxide modified aluminum phosphate adhesive is 150-600 mPa & S.
7. A method for preparing an artificial board by using the graphene oxide modified aluminum phosphate adhesive as claimed in claim 6, wherein the method comprises the following steps: uniformly mixing the graphene oxide modified aluminum phosphate adhesive and a curing agent, spraying the mixture on the surfaces of wood shavings and fibers or directly coating the mixture on the surface of a veneer according to a certain proportion, and then hot-pressing the glued wood shavings, fibers or veneer under certain conditions to form the artificial board.
8. The method for preparing the artificial board by using the graphene oxide modified aluminum phosphate adhesive as claimed in claim 7, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: the amount of the curing agent is 1-10% of the mass of the graphene oxide modified aluminum phosphate adhesive;
the curing agent is magnesium oxide, aluminum oxide, copper oxide, zinc oxide, iron oxide or aluminum nitride.
9.The method for preparing the artificial board by using the graphene oxide modified aluminum phosphate adhesive as claimed in claim 7, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: the glue application amount of the wood shavings and the fibers is 8 to 30 percent of the absolute dry mass of the prepared artificial board; the single board is at 100-300g/m2And (4) performing double-sided sizing.
10. The method for preparing the artificial board by using the graphene oxide modified aluminum phosphate adhesive as claimed in claim 7, wherein the graphene oxide modified aluminum phosphate adhesive comprises the following steps: the hot pressing temperature of the wood shavings and the fibers is 150-200 ℃, the hot pressing time is 0.5-2min/mm, and the hot pressing pressure is 0.5-2.0 MPa;
the hot pressing temperature of the single board is 150-200 ℃, the hot pressing time is 0.5-2min/mm, and the hot pressing pressure is 0.5-2.0 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962314.2A CN110591566A (en) | 2019-10-11 | 2019-10-11 | Graphene oxide modified aluminum phosphate adhesive for artificial board and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962314.2A CN110591566A (en) | 2019-10-11 | 2019-10-11 | Graphene oxide modified aluminum phosphate adhesive for artificial board and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110591566A true CN110591566A (en) | 2019-12-20 |
Family
ID=68866419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910962314.2A Pending CN110591566A (en) | 2019-10-11 | 2019-10-11 | Graphene oxide modified aluminum phosphate adhesive for artificial board and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110591566A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705064A (en) * | 2009-11-06 | 2010-05-12 | 童国松 | Environment friendly aldehyde-free odourless building glue |
| CN101724352A (en) * | 2009-12-11 | 2010-06-09 | 北京工业大学 | Inorganic adhesive for artificial board and preparation method thereof |
| US20150093080A1 (en) * | 2013-09-30 | 2015-04-02 | Corning Cable Systems Llc | Optical connectors with inorganic adhesives and methods for making the same |
| CN106833431A (en) * | 2016-12-27 | 2017-06-13 | 济南圣泉集团股份有限公司 | A kind of adhesive and its preparation method and application |
| CN108264851A (en) * | 2018-01-31 | 2018-07-10 | 燕园众欣纳米科技（北京）有限公司 | A kind of graphite ene-type high temperature resistant phosphate adhesive and preparation method |
| CN108485328A (en) * | 2018-05-02 | 2018-09-04 | 苏州大学 | A kind of normal temperature cure inorganic coating, preparation method and coated workpieces |
| CN109227791A (en) * | 2018-08-31 | 2019-01-18 | 徐培培 | A kind of waterproof pluwood |
-
2019
- 2019-10-11 CN CN201910962314.2A patent/CN110591566A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705064A (en) * | 2009-11-06 | 2010-05-12 | 童国松 | Environment friendly aldehyde-free odourless building glue |
| CN101724352A (en) * | 2009-12-11 | 2010-06-09 | 北京工业大学 | Inorganic adhesive for artificial board and preparation method thereof |
| US20150093080A1 (en) * | 2013-09-30 | 2015-04-02 | Corning Cable Systems Llc | Optical connectors with inorganic adhesives and methods for making the same |
| CN106833431A (en) * | 2016-12-27 | 2017-06-13 | 济南圣泉集团股份有限公司 | A kind of adhesive and its preparation method and application |
| CN108264851A (en) * | 2018-01-31 | 2018-07-10 | 燕园众欣纳米科技（北京）有限公司 | A kind of graphite ene-type high temperature resistant phosphate adhesive and preparation method |
| CN108485328A (en) * | 2018-05-02 | 2018-09-04 | 苏州大学 | A kind of normal temperature cure inorganic coating, preparation method and coated workpieces |
| CN109227791A (en) * | 2018-08-31 | 2019-01-18 | 徐培培 | A kind of waterproof pluwood |
Non-Patent Citations (3)
| Title |
|---|
| TINGJIE CHEN 等: "Constructing hydrophobic interfaces in aluminophosphate adhesives with", 《COMPOSITES PART B 》 * |
| 李庆宝 等: ""基于磷酸盐的有机/无机复合型铸造粘结剂初探"", 《热加工工艺》 * |
| 胡长伟: "《纳米材料的生态毒性效应与环境释放风险》", 3 May 2015, 山东人民出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2784218A1 (en) | Granulation-free ecological plate high-pressure decorative surface material and manufacturing method thereof | |
| CN101724352A (en) | Inorganic adhesive for artificial board and preparation method thereof | |
| CN112223463B (en) | High-strength wood composite material and preparation method thereof | |
| CN113696291B (en) | Method for improving wood performance through mild furfuryl alcohol modification and synergistic densification treatment | |
| CN111944480B (en) | Silica sol soybean protein adhesive for fiberboard production and preparation method thereof | |
| CN111360965A (en) | Floor containing graphene coating and preparation method thereof | |
| CN112662135A (en) | Epoxy resin insulating board and preparation method thereof | |
| CN107572951B (en) | High-density calcium silicate board and preparation method thereof | |
| CN115091572A (en) | Preparation method of environment-friendly high-strength flame-retardant decorative veneer | |
| CN107599093B (en) | Water-borne functional wood modifier and treatment method thereof | |
| CN114370137A (en) | Moisture-proof flame-retardant bamboo-wood fiber wallboard and preparation method thereof | |
| CN107987763B (en) | Low-formaldehyde-release urea-formaldehyde resin adhesive and preparation method thereof | |
| CN114656882A (en) | Composite adhesive, flame-retardant wood substrate using composite adhesive and preparation process of flame-retardant wood substrate | |
| CN110591566A (en) | Graphene oxide modified aluminum phosphate adhesive for artificial board and preparation method thereof | |
| CN110408358B (en) | Acid and alkali resistant bio-based adhesive and preparation method thereof | |
| CN113103381B (en) | Formaldehyde-free flame-retardant plywood and preparation method thereof | |
| CN110669441A (en) | Preparation method of PVA-phosphorus-aluminum adhesive for artificial board | |
| CN111978720A (en) | Environment-friendly building board and preparation method thereof | |
| CN106750421A (en) | A kind of phenolic resin enhancing composite and preparation method thereof | |
| CN114670294B (en) | High-strength ecological plate and manufacturing process | |
| CN1186403C (en) | Fireproof paint for steel structure of housing | |
| CN114133913B (en) | Waste molasses-based high-strength environment-friendly formaldehyde-free adhesive and preparation method and application thereof | |
| CN1850601A (en) | Method for preparing high modulus water-soluble potassium silicate and its use for wood processing | |
| CN114525079A (en) | Formaldehyde-free flame-retardant magnesium oxychloride cement-based wood adhesive and preparation method thereof | |
| CN114605106A (en) | Composite building material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191220 |
|
| RJ01 | Rejection of invention patent application after publication |